Vacuum electron beam welding gun and welding chamber fixing device for gear matching surface

Abstract

The utility model provides a vacuum electron beam welding gun and welding chamber fixing device for a gear matching surface, which relates to the technical field of welding process, comprises a machine body and is characterized in that a vacuum pump is arranged on one side of the machine body, a console is arranged on one side of the machine body far away from the vacuum pump, and an electron beam generator chamber is arranged on the surface of the machine body. A cathode is arranged in the electron beam generator chamber, an anode is arranged at the bottom of the cathode, the electron beam generator chamber is arranged at the position of the inclined edge of the pentagon of the machine body at the inclined angle of 45 degrees, and the angle of the inclined edge of the machine body is also 45 degrees. Under the condition that deflection is not conducted through a deflection coil, the device can effectively reach the joint of the matching faces of a gear body and a shaft, so that the welding quality is guaranteed in the welding process, the welding task is completed, and the defect that electron beams can only be horizontally emitted on the surface of a workpiece for welding and cannot penetrate into the connecting line of the inner hole face of the gear and the shaft is overcome.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding process technical field especially relates to a kind of vacuum electron beam welding torch and welding chamber fixing device for gear mating surface. BACKGROUND

[0002] According to the Chinese publication (announcement) No. CN208879920U discloses a kind of vacuum switching device and electron beam welding machine.The vacuum switching device includes the partition plate between process chamber and electron beam generator chamber, which is used to isolate the process chamber and electron beam generator chamber, the vacuum switching device also includes column valve, transmission device and driving device, the column valve includes valve body, valve core and column valve handle, the valve core is arranged in the valve body, the column valve handle is connected with the valve core;The column valve is fixed above the partition plate, the column valve handle is connected with driving device by transmission device, under the driving of the driving device, the column valve handle rotates and in turn drives the valve core to rotate.The vacuum switching device is simple in structure, convenient to operate, fast in switching, low in manufacturing cost, and easy to disassemble and maintain.

[0003] Gear is an important part in industrial manufacturing, also is indispensable important part of transmission device, usually gear is worked by the connection with shaft, and the connection of some special gears and shaft is not general pin cooperation, is connected together by welding, and the quality of welding will affect the transmission work of gear, especially the friction and stress concentration generated in transmission process lead to welding interface cracking

[0004] Because of the welding process of welding gear inner hole mating surface and shaft, the above-mentioned technology and prior art can only cope with workpiece surface when welding, horizontal electron beam is welded, cannot be in-depth to the connecting line of gear inner hole surface and shaft, to cause the welding quality of gear and shaft to drop, also can damage the service life of gear. UTILITY MODEL CONTENTS

[0005] The utility model aims at solving the shortcoming that only workpiece surface horizontal electron beam is welded and cannot be in-depth to the connecting line of gear inner hole surface and shaft in prior art, and proposes a kind of vacuum electron beam welding torch and welding chamber fixing device for gear mating surface.

[0006] In order to achieve the above object, the utility model discloses the following technical scheme: a kind of vacuum electron beam welding torch and welding chamber fixing device for gear mating surface, including machine body, it is characterized by: the side of the machine body is equipped with vacuum pump, the side of the machine body away from vacuum pump is equipped with control cabinet, the surface of the machine body is equipped with electron beam generator chamber, the inside of the electron beam generator chamber is equipped with cathode, the bottom of the cathode is equipped with anode, the bottom of the anode is equipped with lens, the bottom of the lens is equipped with deflection coil, the inside of the machine body is equipped with welding chamber, the inside of the welding chamber is equipped with driving motor, the top of the driving motor is equipped with mounting plate, the top of the mounting plate is equipped with mounting frame, the top surface of the mounting frame is equipped with two limit blocks, the top of the mounting frame is equipped with gear body, the side of the gear body is equipped with top rod, the top of the gear body is equipped with ccd camera, single door is equipped between the vacuum pump and control cabinet.

[0007] Preferably, the vacuum pump is installed on the side of the machine body, and the vacuum pump is bolted to the machine body.

[0008] Preferably, the machine body and the welding chamber are both pentagonal in transverse section, and the electron beam generator chamber is arranged on the inclined edge surface of the machine body.

[0009] Preferably, the cathode, the anode, the lens and the deflection coil are all installed inside the electron beam generator chamber, and the electron beam generator chamber is in circuit communication with the control cabinet.

[0010] Preferably, the driving motor is installed inside the machine body, and the driving motor is bolted to the machine body.

[0011] Preferably, the top rod is installed on the inner wall surface of the machine body, and the top rod is bolted to the machine body.

[0012] Preferably, the mounting plate is welded to the driving motor, the mounting frame is bolted to the mounting plate, the two limit blocks are arranged at the two ends of the top surface of the mounting frame, and the limit blocks are integrally formed with the mounting frame.

[0013] Advantages

[0014] The utility model discloses a special five -sided welding chamber's configuration is adopted, and the electron beam generator chamber is set up in the position of the five -sided hypotenuse of the machine body with 45 degrees of inclination position, and the angle of the hypotenuse of the machine body is also 45 degrees, so that when the electron beam generator chamber emits electron beam through the control cabinet, in the absence of deflection through the deflection coil, can effectively reach the gear main body and the cooperation face connection of the shaft, thereby guaranteeing the quality of welding in the welding process, completing the welding task, the only response workpiece surface horizontal electron beam welding cannot go deep into the connecting line of the gear hole face and the shaft's shortcomings are solved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 It is the isometric view of the utility model;

[0016] Figure 2 It is the partial view of the utility model;

[0017] Figure 3 It is the front view of the utility model;

[0018] Figure 4 It is the Figure 3 A-A section view of the utility model.

[0019] LEGEND:

[0020] 1, machine body;2, control cabinet;3, electron beam generator chamber;4, ejector rod;5, vacuum pump;6, mounting plate;7, mounting frame;8, limit block;9, single door;10, cathode;11, anode;12, lens;13, deflection coil;14, ccd camera;15, drive motor;16, gear main body;17, welding chamber. DETAILED DESCRIPTION

[0021] In order to make the technical means, creative features, purposes and effects of the utility model easy to understand, the following further describes the utility model in combination with specific embodiments and drawings, but the following embodiments are only preferred embodiments of the utility model, not all. Based on the embodiments in the embodiment, other embodiments obtained by those skilled in the art without creative labor all belong to the protection scope of the utility model.

[0022] The specific embodiments of the utility model are described below in combination with the drawings. Specific embodiment one:

[0024] Refer to Figures 1-4A kind of vacuum electron beam welding torch and welding chamber fixing device for gear mating surface, including body 1, it is characterized in that: the side of body 1 is equipped with vacuum pump 5, the side of body far 1 from vacuum pump 5 is equipped with control console 2, the surface of body 1 is equipped with electron beam generator chamber 3, the inside of electron beam generator chamber 3 is equipped with cathode 10, the bottom of cathode 10 is equipped with anode 11, the bottom of anode 11 is equipped with lens 12, the bottom of lens 12 is equipped with deflection coil 13, the inside of body 1 is equipped with welding chamber 17, the inside of welding chamber 17 is equipped with drive motor 15, the top of drive motor 15 is equipped with mounting plate 6, the top of mounting plate 6 is equipped with mounting frame 7, the top surface of mounting frame 7 is equipped with two limit blocks 8, the top of mounting frame 7 is equipped with gear body 16, the side of gear body 16 is equipped with top rod 4, the top of gear body 16 is equipped with ccd camera 14, single door 9 is equipped between vacuum pump 5 and control console 2, vacuum pump 5 is installed on the side of body 1, and vacuum pump 5 is bolted with body 1, single door 9 is hinged with body 1, the cross section of body 1 and welding chamber 17 is pentagon, and electron beam generator chamber 3 is set up on the inclined edge surface of body 1, electron beam generator chamber 3 is integrally formed with body 1, cathode 10, anode 11, lens 12 and deflection coil 13 are all installed in the inside of electron beam generator chamber 3, and electron beam generator chamber 3 is in circuit communication with control console 2, drive motor 15 is installed in the inside of body 1, and drive motor 15 is bolted with body 1, drive motor 15 is in line communication with control console 2, top rod 4 is installed on the inner wall surface of body 1, and top rod 4 is bolted with body 1, top rod 4 is set up at the bottom of electron beam generator chamber 3, and top rod 4 is in parallel with gear body 16, ccd camera 14 is installed on the surface of the inner wall of body 1, and ccd camera 14 is bolted with body 1, ccd camera 14 and top rod 4 are all in line communication with control console 2, mounting plate 6 is welded with drive motor 15, mounting frame 7 is bolted with mounting plate 6, two limit blocks 8 are set up at the two ends of the top surface of mounting frame 7, and limit block 8 is integrally formed with mounting frame 7, gear body 16 is installed on the top surface of mounting frame 7, and gear body 16 is installed in the middle of two limit blocks 8.

[0025] The cross section of the body 1 is specially shaped as a pentagon, so that the welding chamber 17 inside the body 1 is also specially shaped as a pentagon, which is the place where the gear body 16 is welded, the electron beam generator chamber 3 is arranged on the hypotenuse surface of the body 1, and the hypotenuse of the body 1 and the welding chamber 17 is 45 degrees, so that the light beam emitted inside the electron beam generator chamber 3 is also 45 degrees, the cathode 10, the anode 11, the lens 12 and the deflection coil 13 are all installed inside the electron beam generator chamber 3, the electron beam generator chamber 3 is connected to a high-voltage power supply, the electron beam generator chamber 3 is opened by the control console 2, the cathode 10 is heated to emit a large number of free electrons, the free electrons are accelerated by the anode 11 to form a high-speed electron beam and are focused by the lens 12, and the focused electron beam is oriented by the deflection coil 13 to make the electron beam gather on the workpiece, which can increase the temperature of the workpiece by collision. The high-speed electrons in the electron beam collide with the atoms in the workpiece, converting their kinetic energy into heat energy. With the heating effect of the electron beam, the workpiece gradually reaches the melting point and begins to melt to achieve the purpose of welding. The vacuum pump 5 is installed on the left surface of the body 1 by two fixed bolts and is connected to the mains, and the vacuum pump 5 is opened by the control console 2 to evacuate the welding chamber 17 inside the body 1 to ensure the stability of the gear body 16 during welding in the welding chamber 17, which can effectively reduce the oxygen and moisture in the gas, thereby reducing the possibility of impurity inclusions during welding, etc. The single door 9 is hingedly connected to the body 1, the sample is sent into the body 1 by opening the single door 9, and the single door 9 is closed to make the body 1 in a sealed state to prevent gas from entering the welding chamber 17. The driving motor 15 installed inside the body 1 drives the mounting plate 6 to rotate after being decelerated by the reducer, the mounting plate 6 is used to install the mounting bracket 7, the mounting bracket 7 is used to install the gear body 16, the gear body 16 is clamped on the top surface of the mounting bracket 7 through the two limiting blocks 8 on the top surface of the mounting bracket 7, when the driving motor 15 drives the mounting plate 6 to rotate, the mounting bracket 7 fixed on the mounting plate 6 by bolts will also rotate, when the mounting bracket 7 rotates, the gear body 16 will also rotate, the welding position of the whole body is changed by rotating the gear body 16, when rotating to the specified position, the control console 2 controls the telescopic top rod 4 to make the top rod 4 abut against the side surface of the gear body 16 to prevent the gear body 16 from rotating excessively, and the ccd camera 14 installed on the top of the gear body 16 monitors the welding of the gear body 16, so as to detect the welding process in real time.

[0026] When in use, open the single door 9, and install the mounting frame 7 on the mounting plate 6 in advance, the installation process is to install the four screws on the bottom surface of the mounting frame 7 into the four mounting holes on the top surface of the mounting plate 6, and fix them with nuts, after fixing, install the gear body 16 in the middle of the two limiting blocks 8 of the mounting frame 7, fix the gear body 16 on the mounting frame 7 through the two limiting blocks 8, after installation, close the single door 9, and turn on the vacuum pump 5 through the control console 2, so that the vacuum pump 5 can pump the welding chamber 17 inside the machine body 1 to vacuum, and then turn on the electron beam generator chamber 3 through the control console 2, so that the electron beam generator chamber 3 can heat the cathode 10 to emit a large number of free electrons. These free electrons will be accelerated by the anode 11 to form a high-speed electron beam and be focused by the lens 12, and after focusing, the electron beam is oriented by the deflection coil 13, so that the electron beam is gathered on the mating surface of the gear body, which can increase the temperature of the gear body 16 by collision. The high-speed electrons in the electron beam collide with the atoms in the gear body 16, converting their kinetic energy into heat energy. With the heating effect of the electron beam, the gear body 16 gradually reaches the melting point and begins to melt to achieve the purpose of welding. During the welding process, the drive motor 15 can be controlled to drive the gear body 16 to rotate by the control console 2, so as to achieve welding in different places. After the drive motor 15 drives the gear body 16 to rotate, the control console 2 controls the extension and retraction of the ejector rod 4 to make the ejector rod 4 resist the gear body 16 to prevent the gear body 16 from rotating excessively. When the gear body 16 is welding, the ccd camera 14 is turned on through the control console 2 to monitor the welding process of the gear body 16 in real time. Specific embodiment two:

[0028] Reference Figures 1-4 A vacuum electron beam welding gun and welding chamber fixing device for gear mating surface, further based on the basic structure in specific embodiment one, a plurality of mounting frames 7 can be provided, and the spacing between the two limiting blocks 8 on the top surface of each mounting frame 7 is different, and the limiting blocks 8 with different spacing are used to adapt to different sizes of gear bodies 16. Since the mounting frame 7 is installed into the threaded holes of the mounting plate 6 through the four fixing screws on the bottom surface and fixed with nuts, when welding gear bodies 16 of different sizes are needed, the four nuts on the bottom surface of the mounting frame 7 can be removed, and the mounting frame 7 that matches the size of the gear body 16 can be installed on the mounting plate 6 and fixed again with nuts, so that the mounting frame 7 is fixed on the top surface of the mounting plate 6, and the two limiting blocks 8 on the top surface of the mounting frame 7 can clamp the gear body 16, so that the machine body 1 can weld gear bodies 16 of different sizes.

[0029] In summary:

[0030] 1. The special pentagonal welding chamber 17 is configured, and the electron beam generator chamber 3 is set up at the position of the pentagonal bevel of the machine body 1 at an inclined 45° position, the angle of the bevel of the machine body 1 is also 45°, so that when the electron beam generator chamber 3 emits the electron beam by the control console 2, it can effectively reach the connecting position of the gear body 16 and the shaft without deflection by the deflection coil 13, so as to ensure the welding quality in the welding process, complete the welding task, and solve the shortcomings that the electron beam can only be emitted horizontally on the surface of the workpiece for welding and cannot penetrate into the connecting line of the inner hole surface of the gear and the shaft

[0031] In the present application, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can include direct contact between the first and second features, or indirect contact between the first and second features through another feature therebetween. Moreover, the first feature "on", "above" and "on the surface" of the second feature includes the first feature directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "under" the second feature includes the first feature directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0032] The basic principles, main features and advantages of the present application are shown and described above. It should be understood by those skilled in the art that the present application is not limited by the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the present application and do not limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A vacuum electron beam welding gun and welding chamber fixture for gear mating surfaces, comprising a machine body (1), characterized in that: The side of the body (1) is provided with a vacuum pump (5), the side of the body (1) away from the vacuum pump (5) is provided with a control console (2), the surface of the body (1) is provided with an electron beam generator chamber (3), the inside of the electron beam generator chamber (3) is provided with a cathode (10), the bottom of the cathode (10) is provided with an anode (11), the bottom of the anode (11) is provided with a lens (12), the bottom of the lens (12) is provided with a deflection coil (13), the inside of the body (1) is provided with a welding chamber (17), the inside of the welding chamber (17) is provided with a drive motor (15), the top of the drive motor (15) is provided with a mounting plate (6), the top of the mounting plate (6) is provided with a mounting frame (7), the top surface of the mounting frame (7) is provided with two limiting blocks (8), the top of the mounting frame (7) is provided with a gear body (16), one side of the gear body (16) is provided with a top rod (4), the top of the gear body (16) is provided with a ccd camera (14), and the middle of the vacuum pump (5) and the control console (2) is provided with a single door (9).

2. The vacuum electron beam welding gun and chamber fixture for gear mating surfaces of claim 1, wherein: The vacuum pump (5) is installed on the side of the body (1), and the vacuum pump (5) is bolted with the body (1), and the single door (9) is hinged with the body (1).

3. The vacuum electron beam welding gun and chamber fixture for gear mating surfaces of claim 1, wherein: The cross section of the body (1) and the welding chamber (17) is pentagonal, and the electron beam generator chamber (3) is arranged on the inclined edge surface of the body (1), and the electron beam generator chamber (3) is integrally formed with the body (1).

4. The vacuum electron beam welding gun and chamber fixture for gear mating surfaces of claim 1, wherein: The cathode (10), the anode (11), the lens (12) and the deflection coil (13) are all installed in the inside of the electron beam generator chamber (3), and the electron beam generator chamber (3) is in circuit communication with the control console (2).

5. The vacuum electron beam welding gun and chamber fixture for gear mating surfaces of claim 1, wherein: The drive motor (15) is installed in the inside of the body (1), and the drive motor (15) is bolted with the body (1), and the drive motor (15) is in line communication with the control console (2).

6. The vacuum electron beam welding gun and chamber fixture for gear mating surfaces of claim 1, wherein: The top rod (4) is installed on the inner wall surface of the body (1), and the top rod (4) is bolted with the body (1), the top rod (4) is arranged at the bottom of the electron beam generator chamber (3), and the top rod (4) is in parallel with the gear body (16), the ccd camera (14) is installed on the surface of the inner wall of the body (1), and the ccd camera (14) is bolted with the body (1), and the ccd camera (14) and the top rod (4) are in line communication with the control console (2).

7. The vacuum electron beam welding gun and chamber fixture for gear mating surfaces of claim 1, wherein: The mounting plate (6) is welded with the drive motor (15), the mounting frame (7) is bolted with the mounting plate (6), the two limiting blocks (8) are arranged at the two ends of the top surface of the mounting frame (7), and the limiting blocks (8) are integrally formed with the mounting frame (7), the gear body (16) is installed on the top surface of the mounting frame (7), and the gear body (16) is installed in the middle of the two limiting blocks (8).

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